dbimportdemo

余弦波是渐变的，当ωt+φ的取值变化量很小时，Y的变化量也是很微小的。余弦波的这一特性保证了嵌入水印后相邻字符灰度值差别不大，人眼无法识别，从而保证了水印的不可见性和图像质量。(Cosine wave is gradual, and when ωt+ φ values variation is very small, Y amount of change is very small. Cosine waves This feature ensures that watermarked gray value of adjacent character is not very different, the human eye does not recognize, thus ensuring the invisibility of watermark and image quality.)

ekf_algorithm for Mobile Robot Localization

说明：  信号处理中显示已有文件时域波形的matlab程序，显示它的时域波形(Time-domain waveform signal processing existing file matlab program, and its time-domain waveform)

MATLAB程序实例，同台滤波器，可对逆光照片进行处理(MATLAB program example, on the same stage filter can be processed on the backlit photos)

本书是非常不错的信号检测与估计的书籍！值得一看！(fundamentals of stastic signal processing!)

提供了adaboost Algoritm的工具箱，该算法是一种迭代算法，其核心思想是针对同一个训练集训练不同的分类器(弱分类器)，然后把这些弱分类器集合起来，构成一个更强的最终分类器(强分类器)。 (Adaboost is an iterative algorithm, the core idea is the same training set for training the different classifiers (weak classifier), then these weak classifiers together to form a stronger final classifier (strong classification) .)

various factors involved in site location

给定某一技术指标，按照以上技术指标设计巴特沃斯低通滤波器。(Given a technical indicator, technical indicators in accordance with the above design Butterworth low-pass filter.)

基于广义逆的最小二乘曲线拟合，采用满秩分解，用其中一个就可以了，单个太小，不让上传，所以复制三份(curve fitting by using generalized inverse matrix )

实分析引论 作者：William F. Trench(William F. Trench INTRODUCTION TO REAL ANALYSIS)